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BVHC-4-4-56A — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

BVHC-4-4-56A: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, seat_angle: 37.0 DEGREES SECOND END, reducer_type: CONCENTRIC, thread_class: 2B SECOND END, connection_type: UNTHREADED INTERNAL TUBE FIRST END, connection_style: PLAIN (TUBE) FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-309-3301, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
BVHC-4-4-56A
NSN: 4730-01-309-3301
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 78357 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV QUICK COUPLER DIVISION (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
seat_angle37.0 DEGREES SECOND END
reducer_typeCONCENTRIC
thread_class2B SECOND END
connection_typeUNTHREADED INTERNAL TUBE FIRST END
connection_stylePLAIN (TUBE) FIRST END
nominal_thread_size0.750 INCHES SECOND END IN
nominal_overall_length4.250 INCHES IN
thread_series_designatorUNF SECOND END
material_document_and_classificationMIL-C-15726,CMPSN 70:30 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated0.375 INCHES FIRST END IN
tubing_wall_nominal_thickness_for_which_designed0.049 INCHES FIRST END IN
NSN4730-01-309-3301
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: BVHC-4-4-56A · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 3
704-4685499 ITEM F69Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
ENDP52539-OF69Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
704-4685499Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BVHC-4-4-56A?
BVHC-4-4-56A is a COUPLING,TUBE.
What parts can replace BVHC-4-4-56A?
There are 3 known substitutes for BVHC-4-4-56A: 704-4685499 ITEM F69, ENDP52539-OF69, 704-4685499. Substitute compatibility should be verified for your specific system.
What is the NSN for BVHC-4-4-56A?
BVHC-4-4-56A is cataloged in the U.S. Government catalog under NSN 4730-01-309-3301. This indicates validated use in U.S. government and defense supply chains.
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